watchOS 10.4 won't finish downloading process

Hello everyone. Last night i got the notification in my phone about the availability of the new WatchOs 10.4. As always, i accepted the terms & conditions of the new software update and pushed the button to start downloading. This is the part that my problems start. After 20 minutes or so of downloading process the downloading status bar got stuck in the middle. I made a refresh to see if the problem could solve but nothing happened. I deleted the download file made a restart both my phone (iPhone 12 Pro Max) and my Watch (Apple Watch 7) and tried all over again but with the same results. Did anyone else had the same updating problems? Any solutions? Thank you.

[Re-Titled by Moderator]